Buffer Zones for Non-Target Organisms by Aerial Pesticide Application Around Rice Paddy

벼 재배지의 항공 방제시 비표적 생물에 대한 안전거리

  • Park, Yeon-Ki (Pesticide Safety Division, National Institute of Agricultural Science and Technology) ;
  • Jin, Yeoung-Duck (Pesticide Safety Division, National Institute of Agricultural Science and Technology) ;
  • Kim, Byung-Seok (Pesticide Safety Division, National Institute of Agricultural Science and Technology) ;
  • Park, Kyung-Hun (Pesticide Safety Division, National Institute of Agricultural Science and Technology) ;
  • Lee, Jea-Bong (Pesticide Safety Division, National Institute of Agricultural Science and Technology) ;
  • Shin, Jin-Sup (Pesticide Safety Division, National Institute of Agricultural Science and Technology) ;
  • Bae, Chung-Han (Agricultural Research Center, Hankooksamgong Co., Ltd.) ;
  • Lee, Kyu-Seung (Chungnam National University)
  • 박연기 (농업과학기술원 농산물안전성부) ;
  • 진용덕 (농업과학기술원 농산물안전성부) ;
  • 김병석 (농업과학기술원 농산물안전성부) ;
  • 박경훈 (농업과학기술원 농산물안전성부) ;
  • 이제봉 (농업과학기술원 농산물안전성부) ;
  • 신진섭 (농업과학기술원 농산물안전성부) ;
  • 배철한 (한국삼공(주) 농업연구소) ;
  • 이규승 (충남대학교)
  • Published : 2007.03.30

Abstract

The study was carried out to establish buffer zone for the protection of the non-target organisms by aerial pesticide application. The two pesticide combination of 3-way tank-mixing of three pesticides for aerial application, ferimzone tricyclazole SC + BPMC EC + validamycin-A SL and hexaconzole EC + isoprothiolane EC+phenthoate EC were selected for the simultaneous control of key pests on paddy rice as blast, sheath blight, brown planthopper and moth. Aquatic organisms including killifish and loach in the paddy field and nearby water reservoirs were not affected by aerial application of the pesticides. However, all the water flea were killed, when they were exposed 10 m from the aerially sprayed site, while the water flea exposed in 30 m away from the site were not affected. Honeybees within 50 m in the wind direction and 20 m in the opposite wind direction showed a mortality of $7{\sim}100%$. Residues concentration of the pesticides in paddy water were not detectable level after six days from aerial application. Drifting distance of aerially sprayed droplet from the target area was within 30 m in the wind direction and 20 m in the opposite direction. Consequently, it was the buffer zones in the aerial pesticides application for the protection of the non-target organisms should be at least 50 m for aquatic organisms and 100 m for honeybees.

항공방제시 비표적생물에 대한 안전거리를 설정하고자 벼의 주요 병해충인 도열병, 잎집무늬마름병, 벼멸구 및 나방류를 동시에 방제할수 있는 훼림존 트리싸이클라졸 액상수화제+비피유제+바리신액제와 헥사코나졸유제+이소란유제+파프유제의 3종 혼용농약을 항공 살포한 후 논물중 농약 잔류량과 수서생물 및 꿀벌에 미치는 영향을 조사하였다. 항공방제시 대상지역 이외의 포장으로 분무입자가 비산하는 정도는 바람부는 방향으로는 30 m, 반대방향으로는 20 m 이내로 비교적 비산 정도가 낮았다. 항공살포 후 살포지역내 논물중 농약의 잔류량을 조사한 결과 항공방제 6일후에는 논물 중에서는 농약이 검출되지 않았다. 항공방제 지역의 수서생물에 미치는 영향을 조사한 결과, 송사리와 미꾸라지는 방제지역 내외를 막론하고 모든 지점에서 치사되지 않았다. 물벼룩은 항공방제지역으로부터 10 m 지점 이내에 노출된 경우 48시간후 모두 치사되었으나 30 m 이상 지점에서는 영향이 없었다. 꿀벌은 바람부는 방향으로 50 m와 반대방향으로 20 m까지 $7{\sim}100%$ 치사하여 항공 방제시 안전거리는 수서생물의 경우 50 m, 꿀벌의 경우는 100 m로 설정하였다.

Keywords

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